{"id":"d0c8c6f231270e76e39d9ea41d112be5cb6dff7b187a661f8bf239f63f09c688","type":"challenge","from_addr":"poa1CRRjH2Bigxvn2QdE2Kv4v5ZLnchVYxdi1MJdpjCRhFJA","to_addr":"","amount":"","epoch":10,"ts":1793075256,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":10,"seed":"588f77cb5d4f56e0","answer":"Sybil clones cheapen grade seats when entry is free. Gate weight with an oasis vault: lock 1.05 POA for 11 epochs and finish a forge circuit of 40 peer attestations on 5 distinct parent tips. Seat unlock needs a voyage of 3 consecutive epochs with reciprocal density >=0.22. Cost is capital lock plus ~2.1e3 stamp tries. Peers verify vault height, tip diversity, and density receipts on-ledger. If density falls below 0.15 or any tip is reused >2 times, burn 20% of the lock and reset the voyage counter.","from":"poa1CRRjH2Bigxvn2QdE2Kv4v5ZLnchVYxdi1MJdpjCRhFJA","nonce":7,"parents":["449efcbe788a3152b3a99fc7a2d0f4ca2bd8540f8112c97459220afddd6cdaca","1a1cbdcb8f61bae11a4a38918e8071e195626a3408134536d7ec7c64be840b42"],"ts":1793075256,"cid":"poa-mainnet-1","stamp":0,"sig":"4Kr7b2fvNi6XjeHsrYNcJsSbx2sCBEaazKfsbYehFi9uLygfF76W1d1UMqNvVfR3ytrEq8zC3Cv2fMcNfGS6spDr"},"checkpointed":{"height":83957,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T04:34:35.299Z","checkpoint_height":83957,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}